Sorry, forgot to include my work so far.
Ciao,
Markus
>From 96c65781f6d0d7b4f914156f520efe86ce193975 Mon Sep 17 00:00:00 2001
From: Markus Wichmann <nullp...@gmx.net>
Date: Sat, 11 Apr 2015 21:21:34 +0200
Subject: [PATCH] Implement most ICCCM rules for selection handling.
ICCCM mandates the use of real timestamps to interact with the
selection, to rule out race conditions if the clients are run at
different speeds. I have implemented the low hanging fruit, putting the
timestamps into text selection. Also, ICCCM mandates a check for whether
XSetSelectionOwner() worked. Not sure my version is correct, though.
---
st.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/st.c b/st.c
index b2bcfe9..18e8542 100644
--- a/st.c
+++ b/st.c
@@ -423,7 +423,7 @@ static void xsettitle(char *);
static void xresettitle(void);
static void xsetpointermotion(int);
static void xseturgency(int);
-static void xsetsel(char *);
+static void xsetsel(char *, Time);
static void xtermclear(int, int, int, int);
static void xunloadfont(Font *);
static void xunloadfonts(void);
@@ -449,7 +449,7 @@ static void selinit(void);
static void selnormalize(void);
static inline bool selected(int, int);
static char *getsel(void);
-static void selcopy(void);
+static void selcopy(Time);
static void selscroll(int, int);
static void selsnap(int, int *, int *, int);
static int x2col(int);
@@ -984,8 +984,8 @@ getsel(void) {
}
void
-selcopy(void) {
- xsetsel(getsel());
+selcopy(Time t) {
+ xsetsel(getsel(), t);
}
void
@@ -997,7 +997,7 @@ selnotify(XEvent *e) {
XSelectionEvent *xsev;
ofs = 0;
- xsev = (XSelectionEvent *)e;
+ xsev = &e->xselection;
if (xsev->property == None)
return;
do {
@@ -1083,6 +1083,9 @@ selrequest(XEvent *e) {
xev.selection = xsre->selection;
xev.target = xsre->target;
xev.time = xsre->time;
+ if (xsre->property == None)
+ xsre->property = xsre->target;
+
/* reject */
xev.property = None;
@@ -1125,11 +1128,13 @@ selrequest(XEvent *e) {
}
void
-xsetsel(char *str) {
+xsetsel(char *str, Time t) {
free(sel.primary);
sel.primary = str;
- XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
+ XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
+ if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
+ selclear(0);
}
void
@@ -1146,7 +1151,7 @@ brelease(XEvent *e) {
selclear(NULL);
} else {
getbuttoninfo(e);
- selcopy();
+ selcopy(e->xbutton.time);
}
sel.mode = 0;
tsetdirt(sel.nb.y, sel.ne.y);
--
2.1.3
